Password is the core of digital currency

1.

1、 Different definitions:

1. virtual currency:

virtual currency refers to non real currency

digital currency:

digital currency is an alternative currency in the form of electronic currency. Both digital gold coin and cryptocurrency belong to digiccy

3. Cryptocurrency:

cryptocurrency is a kind of transaction medium that uses cryptography principles to ensure transaction security and control the creation of transaction units

4. Token (token):

a kind of article whose shape and size are similar to currency, but the scope of use is limited and has no currency effect, and its token is the homonym of token in English

Second, the characteristics are different:

1; It can also be said that virtual currency is personalized currency. In another way, it can also be called information currency

2. Digital currency:

is an unregulated and digital currency, which is usually issued and managed by developers and accepted and used by members of specific virtual communities

Cryptocurrency:

cryptocurrency is based on the decentralized consensus mechanism, which is opposite to the banking and financial system relying on the centralized regulatory system

4. Token (token):

usually needs to be exchanged for money, used in shops, playgrounds, mass transportation and other places, as a voucher to use services and exchange goods

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at present, digital currency is more like an investment proct, because it lacks a strong guarantee agency to maintain its price stability, and its role as a value measure has not yet appeared, so it can not be used as a means of payment. As an investment proct, digital currency cannot develop without trading platform, operating company and investment company

digital currency is a double-edged sword. On the one hand, the blockchain technology it relies on has been decentralized and can be used in other fields except digital currency, which is one of the reasons why bitcoin is popular; On the other hand, if digital currency is widely used by the public as a kind of currency, it will have a huge impact on the effectiveness of monetary policy, financial infrastructure, financial market and financial stability

2. In short, virtual currency, also known as cryptocurrency, is issued and circulated on the Internet and mainly traded through exchanges. Because it runs on the blockchain, every transaction on the chain is semi anonymous and tamperable, so it ensures the circulation and a certain degree of security. Mainstream digital currencies include bitcoin, Ethereum and Leyte. Digital currency is inseparable from blockchain technology. The core idea of the latter is to ensure that all nodes have a consensus on a transaction through transaction broadcast and irrelevant node confirmation. Once the consensus is formed, transaction confirmation, block excavation and reward will follow. This reward is digital currency. If digital currency wants to have value, it can't do without people's recognition of its value. The more recognition, the more people want to have it, and the exchange came into being. If it's Xiao, it's not recommended to go to big exchanges (currency security, currency, OK) to play contract leverage. You can go to small exchanges to practice, such as currency easy, etc. You can also learn about the coin circle information. The development of the whole coin circle changes every day, very fast
there is no price limit for P.S. digital currency trading, so investment should be cautious!

3.

Digital cryptocurrency is a kind of currency that is not issued by legal tender institutions and controlled by the central bank. It is based on the open source code of a group of equations calculated by computers all over the world, and is generated by a large number of calculation processing of computer graphics card and CPU. It uses the design of cryptography to ensure the security of all aspects of currency circulation

development materials:

1. definition of digital currency:

   digital currency is abbreviated as digiccy, which is the abbreviation of "digital currency" in English and the alternative currency in the form of electronic currency. Both digital gold coin and cryptocurrency belong to digiccy< br />

   

5. What is money? Money is the medium for the exchange of goods (including services). Now our currency is issued by a reputable bank, which is basically guaranteed by its reputation. As long as the users agree, then we can use it to trade. Currency has a certain value preserving property. After I change my labor / services / all my goods into currency, the bank guarantees that I can exchange it for something of almost equal value one day in the future. The premise of this guarantee is that banks will not issue new currencies indiscriminately and that everyone will trust it

in the past, we used precious metals as currency. Because precious metal proction is not high, the speed of new money increase is limited, and the economy is growing, the market needs more money to let the goods flow as much as possible. There is value when there is demand. In this sense, the value of precious metals in making other things is secondary. The economy needs money to circulate goods, and this demand is the main one. However, if the proction of precious metals is limited, and the precious metal currencies in circulation will withdraw from the market for various reasons, then even the newly made precious metal currencies have the same or even higher value

why does bitcoin keep its value? BTC (short for bitcoin) exists in a huge P2P network. Bitcoin group has recognized an algorithm. Under current conditions, only about 6 new BTCs will be generated per hour. At present, there are 50 new BTCs in each group. That is to say, in this world, only about 300 BTCs are generated per hour. This output will also be limited by the difficulty automatically adjusted by the network. You can't speed up money proction by modifying everyone's client algorithm and parameters (client is open source). Counterfeit currency will be discarded by the network (unless you can control most of the network nodes)

what is the value of BTC itself

the value of BTC is the trading channel itself. A new set of BTCs provides a mathematical guarantee to transfer old BTCs from one account to another. The price behind this security guarantee is a lot of computing power. It takes a lot of energy to proce such a safe passage, so the whole BTC user group will reward the mint (currently 50 BTC), which will become 25 BTC after December 2012, and it will be halved every four years

to put it simply, my understanding is that all BTCs in the world are generated by the energy of running computers. Their total value (up to now, there are about 12W groups of BTCs proced, 50 in each group, and the market price is about US $7.3), should be less than the total market value of consumed energy. However, I think most of the energy used to proce BTC is wasted resources< br />4

6.

Core password is used to protect national top secret, secret and secret information, while ordinary password is used to protect national secret and secret information

core password and ordinary password are used to protect state secret information, effectively guarantee the security of central government orders and military orders, and build a password barrier for safeguarding the sovereignty, security and development interests of national cyberspace. According to the law of the people's Republic of China on keeping state secrets, state secrets refer to matters related to national security and interests, which are determined according to legal proceres and only known to a certain range of people within a certain period of time According to the different protected objects, the code law divides the core code and ordinary code

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the core password and common password part specifies the requirements for the use of core password and common password, the security management system, and a series of special security systems and measures for the state to strengthen the work of core password and common password

in the part of commercial password, it stipulates the commercial password standardization system, testing and certification system, market access management system, use requirements, import and export management system, e-government e-authentication service management system and commercial password in-process and post supervision system

7. Digital currency is abbreviated as digiccy, which is the abbreviation of "digital currency" in English. It is an alternative currency in the form of electronic currency. Both digital gold coin and cryptocurrency belong to digiccy
digital currency is a kind of unregulated and digital currency, which is usually issued and managed by developers and accepted and used by members of specific virtual communities. The European Banking authority defines virtual currency as a digital representation of value, which is not issued by the central bank or authorities, nor linked with legal currency. However, because it is accepted by the public, it can be used as a means of payment, or it can be transferred, stored or traded in electronic form
digital currency can be considered as a virtual currency based on node network and digital encryption algorithm. The core characteristics of digital currency are mainly reflected in three aspects: first, e to some open algorithms, digital currency has no issuing subject, so no one or institution can control its issuing; ② Because the number of algorithm solutions is fixed, the total amount of digital currency is fixed, which fundamentally eliminates the possibility of inflation caused by the overuse of virtual currency; ③ Because the transaction process needs the approval of each node in the network, the transaction process of digital currency is safe enough
according to the relationship between digital currency and real economy and real currency, it can be divided into three categories:
one is completely closed, has nothing to do with the real economy and can only be used in a specific virtual community, such as world of warcraft gold
Second, it can be purchased in real currency but not converted back to real currency, which can be used to purchase virtual goods and services, such as Facebook credit
thirdly, it can be exchanged and redeemed with real currency according to a certain ratio. It can purchase both virtual goods and services and real goods and services, such as bitcoin.

8.

Digital currency is an alternative currency in the form of electronic currency. Both digital gold coin and cryptocurrency belong to digiccy

can be considered as a virtual currency based on node network and digital encryption algorithm. The core characteristics of digital currency are mainly reflected in three aspects:

① e to some open algorithms, digital currency has no issuing subject, so no one or organization can control its issuing

(2) the total amount of digital currency is fixed because the number of algorithm solutions is determined, which fundamentally eliminates the possibility of inflation caused by the overuse of virtual currency

(3) as the transaction process needs the approval of each node in the network, the transaction process of digital currency is safe enough

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features:

1, low transaction cost

compared with traditional bank transfer, remittance and other methods, digital currency transaction does not need to pay fees to a third party, and its transaction cost is lower, especially compared with the cross-border payment that provides high handling charges to payment service providers

2, fast transaction speed

the blockchain technology used in digital currency has the characteristics of decentralization, and it does not need any centralized organization similar to the clearing center to process data, so the transaction processing speed is faster

3, high anonymity

in addition to the physical form of currency can achieve point-to-point transactions without intermediary participation, one of the advantages of digital currency compared with other electronic payment methods is that it supports remote point-to-point payment, and it does not need any trusted third party as intermediary, Both sides of the transaction can complete the transaction in a completely unfamiliar situation without mutual trust

therefore, it has higher anonymity and can protect the privacy of traders, but it also creates convenience for cyber crime, which is easy to be used by money laundering and other criminal activities